According to Herodotus, Ecbatana was chosen as the Medes' capital in the late 8th century BC by Deioces. Under the Achaemenid Persian kings, Ecbatana, situated at the foot of Mount Alvand, became a summer residence. Later, it became the capital of the Parthian kings, at which time it became their main mint, producing drachm, tetradrachm, and assorted bronze denominations.